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A multiparameter approach to volcano monitoring based on 4D analyses of seismo-volcanic and acoustic signals: The 2008 Mt. Etna eruption
Author(s)
Language
English
Obiettivo Specifico
1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/36 (2009)
Publisher
American Geophysical Union
Pages (printed)
L18307
Issued date
September 30, 2009
Abstract
Volcanic tremor and low frequency events, together with infrasound signals, can represent important precursory phenomena of eruptive activity because of their strict relationship with eruptive mechanisms and with fluid flows through the volcano's feeding system. Important variations of these seismo-volcanic and infrasound signals, recorded at Mt. Etna volcano, occurred both in the medium- and short-term before the eruption, that took place on 13 May 2008. The most significant changes were observed in the frequency content and location of LP events, as well as in volcanic tremor location, that allowed us to track the magma pathway feeding the 2008 eruptive activity. The infrasound showed three different families of events linked to the activity of the three active vents: North-East crater, South-East crater and the eruptive fissure. The seismic and infrasonic variations reported, corroborated by ground deformations variations, help to develop a quantitative prediction and early-warning system for effusive and or explosive eruptions.
Sponsors
European Union VOLUME FP6-2004-Global-3
References
Cannata, A., P. Montalto, E. Privitera, G. Russo, and S. Gresta (2009), Tracking eruptive phenomena by infrasound: May 13, 2008 eruption at Mt. Etna, Geophys. Res. Lett., 36, doi:10.1029/2008GL036738.
Chouet, B. (1996), Long-period volcano seismicity: Its source and use in eruption forecasting, Nature, 380, 309-316.
Di Grazia, G., S. Falsaperla, and H. Langer (2006), Volcanic tremor location during the 2004 Mount Etna lava effusion, Geophys. Res. Lett., 33, doi:10.1029/2005GL025177.
Neidell, N., and M.T. Tarner (1971), Semblance and other coherency measures for multichannel data, Geophysics, 36, 482-497.
Neri, M. (2008), Volcanological report - Eruzione dell’Etna, 28/05/2008 - Fratture non eruttive sul fianco settentrionale del Cratere di Nord-Est (in Italian),
http://www.ct.ingv.it/Report/RPTVGSTR20080528.pdf.
Palano, M., S. Gresta, and G. Puglisi (2009), Time-dependent deformation of the eastern flank of Mt. Etna: After-slip or viscoelastic relaxation? Tectonophysics,
doi:10.1016/j.tecto.2009.02.047
Patanè, D., G. Di Grazia, A. Cannata, P. Montalto, and E. Boschi (2008), The shallow magma pathway geometry at Mt. Etna volcano, Geochem. Geophys. Geosyst.,
doi:1029/2008GC002131.
Ripepe, M., Marchetti, E., and G. Ulivieri (2007), Infrasonic monitoring at Stromboli volcano during the 2003 effusive eruption: Insights on the explosive and degassing process of an open conduit system, J. Geophys. Res., 112, doi:10.1029/2006JB004613
Vergniolle, S., and M. Ripepe (2008), From Strombolian explosions to fire fountains at Etna Volcano (Italy): what do we learn from acoustic measurements? Geol. Soc., London, Special Publications, 307, 103-124.
Chouet, B. (1996), Long-period volcano seismicity: Its source and use in eruption forecasting, Nature, 380, 309-316.
Di Grazia, G., S. Falsaperla, and H. Langer (2006), Volcanic tremor location during the 2004 Mount Etna lava effusion, Geophys. Res. Lett., 33, doi:10.1029/2005GL025177.
Neidell, N., and M.T. Tarner (1971), Semblance and other coherency measures for multichannel data, Geophysics, 36, 482-497.
Neri, M. (2008), Volcanological report - Eruzione dell’Etna, 28/05/2008 - Fratture non eruttive sul fianco settentrionale del Cratere di Nord-Est (in Italian),
http://www.ct.ingv.it/Report/RPTVGSTR20080528.pdf.
Palano, M., S. Gresta, and G. Puglisi (2009), Time-dependent deformation of the eastern flank of Mt. Etna: After-slip or viscoelastic relaxation? Tectonophysics,
doi:10.1016/j.tecto.2009.02.047
Patanè, D., G. Di Grazia, A. Cannata, P. Montalto, and E. Boschi (2008), The shallow magma pathway geometry at Mt. Etna volcano, Geochem. Geophys. Geosyst.,
doi:1029/2008GC002131.
Ripepe, M., Marchetti, E., and G. Ulivieri (2007), Infrasonic monitoring at Stromboli volcano during the 2003 effusive eruption: Insights on the explosive and degassing process of an open conduit system, J. Geophys. Res., 112, doi:10.1029/2006JB004613
Vergniolle, S., and M. Ripepe (2008), From Strombolian explosions to fire fountains at Etna Volcano (Italy): what do we learn from acoustic measurements? Geol. Soc., London, Special Publications, 307, 103-124.
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